I inspected the PSU PCB and see what might be a toasted SM transistor.
Photo (limited by camera's macro capability):
But still hamstrung without a legible schematic.
Thanks for any comments/advice,
On Sun, Sep 2, 2012 at 3:39 PM, Barry N1EU <firstname.lastname@example.org> wrote:
> The fuse is fine. There's a faint "burnt" odor inside the controller.
> Transformer secondary voltages look good.
> 1. Does anyone have a legible copy of the schematic? Yaesu's PDF
> version is illegible at the component level.
> 2. The interconnect diagram clearly shows Q1/D2 connecting to the PSU
> PCB via J1007. Can someone please point out where the Q1/D2 circuit
> is shown on the schematic diagram?
> Thanks & 73,
> Barry N1EU
> On Sun, Sep 2, 2012 at 1:18 PM, Barry N1EU <email@example.com> wrote:
>> I'd appreciate any troubleshooting tips for a suddenly non-turning
>> G-1000DXA rotor. Cable continuity checks good, reading 500 ohms
>> across the pot and 64 ohms across the motor back at the controller
>> connector. If I hang a voltmeter across the motor pins (4,5) on the
>> back of the controller with cable disconnected, I don't see any
>> voltage generated by the controller when I press the LEFT/RIGHT turn
>> buttons. Shouldn't I be seeing DC Voltage? If so, do I next check
>> the fuse on the PS-Unit PCB or ???
>> Any advice appreciated.
>> Barry N1EU
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